[−][src]Crate rand_regex
Generates strings are byte strings following rule of a regular expression.
use rand::{SeedableRng, Rng}; let mut rng = rand_xorshift::XorShiftRng::from_seed(*b"The initial seed"); // creates a generator for sampling strings let gen = rand_regex::Regex::compile(r"\d{4}-\d{2}-\d{2}", 100).unwrap(); // sample a few strings randomly let samples = (&mut rng).sample_iter(&gen).take(3).collect::<Vec<String>>(); // all Unicode characters are included when sampling assert_eq!(samples, vec![ "៧७᧗꤂-૪۰-٩𑃶".to_string(), "៤꣖൭᧓-꩗१-9၅".to_string(), "௫൯𑵒៦-𝟚༧-෮༩".to_string(), ]); // you could use `regex_syntax::Hir` to include more options let mut parser = regex_syntax::ParserBuilder::new().unicode(false).build(); let hir = parser.parse(r"\d{4}-\d{2}-\d{2}").unwrap(); let gen = rand_regex::Regex::with_hir(hir, 100).unwrap(); let samples = (&mut rng).sample_iter(&gen).take(3).collect::<Vec<String>>(); assert_eq!(samples, vec![ "5786-30-81".to_string(), "4990-38-85".to_string(), "4514-20-35".to_string(), ]);
Structs
Regex | A random distribution which generates strings matching the specified regex. |
Enums
Error | Error returned by |